Dominic Raab, the justice minister, said counter-terrorism powers were under constant review, adding: “These changes will strengthen our ability to punish and deter those who tip off individuals involved in terrorism, and reinforce the conditions imposed by the authorities on individuals subject to monitoring, supervision or control.”

The Unduly Lenient Sentence (ULS) scheme gives anyone the power to ask the Attorney General to review a sentence and refer a case to the Court of Appeal for reconsideration.

The new crimes being added cover incidents where someone learns of terrorist activity through their work and fails to report information to the police, such as an accountant discovering a client is funding a proscribed group.

London Bridge Terror Attack

They will also see punishments increased for breaching orders imposed to protect the public, including powers to ban suspected Isis fighters who return to the UK.